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DD¯*−πJ/ψ coupled-channel scattering for Zc(3900)

Yukihiro Abe1, Yasuhiro Yamaguchi2,3,4, and Atsushi Hosaka1,5,6

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Phys. Rev. D 114, 014061 – Published 27 July, 2026

DOI: https://doi.org/10.1103/lvcb-gdz3

Abstract

We perform coupled channel analysis for DD¯*, J/ψπ, and related meson pairs for the Zc(3900) channel in an effective model of hadrons and quarks. The model incorporates meson exchange potential such as one pion and D(*) meson exchanges, and quark exchanges. It turns out that the meson exchange potential is small, while the off-diagonal interactions by the quark exchanges at short distances, particularly for transitions between DD¯*−J/ψπ are strong, which plays a main role for the scattering amplitudes for the Zc(3900) channel, in consistent with the results of the lattice simulations of the HALQCD group.

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Phys. Rev. D 114, 014061– Published 27 July, 2026
  • Received 6 May 2026
  • Accepted 1 July 2026
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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